Ophthalmic mounting.



G.'H. DAY.

OPHTHALMIC MOUNTING. APPLICATION FILED 001.1, 1916.

1,282,050. Patented 001;. 22, 1918.

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* Applicationfiledpctober 7, 1-916. ;Serial"No. 124;263.

.thalm;ic Mountings, of which the tel-lowing 'isa specification-I Thisinvention relates to improvements in ophthalmic mountings and has particular reference to novel improved lens connecting means. V

@ne qf the leading objects of the present invention the provision of novel and improved lens connecting means which "maybe readily adjusted to""varythe distance between lenses as desired.

A further object of the invention is the provision of animproved structure of this nature" in"w h i eh the lenses are seoured against aceidenta l 'tnfiisting movement and normally braced against drooping movement about the miiidle'of their Qonnection as a center."

A further object of the invention resides in the provision of a novel and improved center which may be employed either solely for adjustment purposes orfor both adjustment'andsecuring purposes as may be dei d- Another objectof the invention resides in the provisionof novel combinationand arrangement of parts particularly adapted for useineonneetion With aneye protector or other heavy mounting, which will insure most comfortable fitting and permit of ready adjustment of the several parts the particularffacial'configugationof the wearer as desired.

Other objects and advantagesof my improved construction Sli oiil d be readily parent by reference was following specification takenin egnnecti a'wa l the acoo mpanying' drawings, are tem be eag rness that I may make any modificationsin the speoific, details of construction shown and described "W hin 4 th son 9 th eprs ed claims h u d a ing 9 Ea n the spirit of my invention. 4 Figure I represents a front view of a embodying my several improveen'tire construction.

' :Fig; 1V represents a sectional view taken as on the line IV*IV of Fig. -III.

Vrepresen'ts a front view of a slightly modified construction.

Fig. VI represents asectional view on the line" YI-Q 1 *of Fig; V

Fig. VH represents a adjusting nose guard. I

In he 'd1fawi1igs, the numeral 1 designates the lens frames which may be of anvusual or ordinary construction; to retain in position the lenses 2 and which are preferably provided at their outer ends with the temp'les or retaining devices 3', to partially or entirely retain the mounting in position on t I i v detail View of a s the face of the, wearer.

Connecting the lens frames 1, I have illustrated my improved center; comprising the central spiral'portipn 4:; preferably With its material "disposed anteroposteriorly, having its exit portions twisted just outside the loo or circle 4 to bring the material into a vertical planeterminating the tWo vertically disposed end portions each secured to an I adjacent ring;

K s e n he two nd 0 he i t the and prevent relativetwisting of the parts,

brace them against accidental displacement f m 9ers adj 1 1mm an de hem just n mo n I pr er y pl around the partsand closing the ring 4, the

sle'eve'or band 6, as is most clearly illustrated i 'F III an 'i yt end closely embracing the adjacent or overlapping portions o l h snira l sh rem tting fr at ly long tudi a 'lid gmev me t Qft e pa a e' i d I Se ure e tr lly t e b t o of h ring or spiral 4 I have illustrated the crest e t 91 no ense i m m s 7 a d to r st o t c nter or lestof t n t upop rtthe arge vpa t o t e e g t of h mounting and correctly position it upon the face. In addition if deslred I may secure to each of the frames 1 the gripping or nose side engaging guard members 8 connected to the frame 1, preferably as by a looped arm 9, permitting of adjustment of the guards to exactly fit the nose of the wearer.

In the use of my improved construction the bridge may be made of either soft ductile material capable only of adjustment of the bridge to vary the pupillary distance and relative position of the lenses to exactly fit the wearer, or may if preferred be made of regular optical spring material. I here mention optical spring material on account of the fact that it is customary in connection with optical mountings, or what is known as spring bridge constructions, to make the spring material of such character that it may be bent ,or twisted as desired and will retain the desired bending adjustment and at the same time will possess suficient spring or resiliency to resist ordinary tensioning and to return the parts to normal position, as for instance in the ordinary spring bridge eyeglass, in which the spring while capable of adjustment serves to retain the mounting in position on the face.

Similarly, in connection with my present ,bonstruction when the bridge is made of spring material the lenses may be separated by a parallel sliding movement, the upper portions of the member 4 sliding through the guide sleeve or member 6, with a parallel movement permitting of separation of the lenses by condensing of the spring coil 4 until the lenses have been separated suficiently to allow the guards to engage the nose. (in releasing the lenses the coil 4: will expand, bringing the guards 8 into clamping engagement with the nose to partially or entirely retain the mounting in position, insuring a firm fit of the mounting on the face and preventing accidental slipping under ordinary usage.

It will be understood that this construction may be used either lone or in connection with temples, it being preferable in the case of an eye protector or the like having heavy rims, to use the temples as a supplemental steadying device when the clamping guards 8 are employed.

In Figs. V and V1, 1 have illustrated a further slight modification of my construction, in which in addition to the lens connecting member comprising the portions l and 5, I have made use of a second member including the portions and 5, oppositely disposed as respects the members 4 and 5, that is to say, the ring l extends upwardly in place of downwardly, while the parts 5' are at the bottom in place of the top of the ring.

It will be noted particularly by reference to Fig. VI, that I have shown the center of the free portion of the ring t as secured to naeaeeo the sleeve 6, while I have shown the ends of the portion a as sliding through the sleeve 10, which .is secured at the one side to the nose rest 7 and at the other side to the bottom of the loop or ring a. In this way the parts relatively brace each other, the sleeve 6 being held against any longitudinal sliding movement on account of its rigid attachment to the member 4., while the sleeve 10 and nose rest 7 are held on account of their rigid attachment to the ring 4:, each of the sleeves serving as a guide for the relatively sliding pair of arms 5 or 5, as the case may be, and the sleeves 6 and 10 together securely holding the parts together for sliding movement for parallel separation or approach of the lenses, while to a maximum resisting any drooping, twisting or other distorting move ment.

From the foregoing description taken in connection with the drawings it will be seen that I have provided a novel and improved construction of bridge or lens connecting means, permitting of ready permanent adjustment of the parts by increasing or decreasing the size of the loop or ring 4-, as may prove necessary, which rin 4 may also be adjusted by flattening or elongating to bring the crest engaging member 7 into exact desired position, which position the several parts will normally occupy.

It will be seen that in addition I have provided an improved construction in which by a parallel sliding movement the lenses may be temporarily separated against the spring of the coil 4 and when released will come back together to bring the guards 8 into clamping engagement with the sides of the nose to partially or entirely retain the mounting in position on the face, as may be desired. 7

It will further be understood that if preferred I may have the nose crest pad or member mounted for loose or swinging movement on the ring 4, as illustrated in Fig. VII, thus allowing it to automatically adjust itself to the nose of the wearer.

I claim: 7

1. In a device of the character described, a bridging or lens-connecting member comprising a flat piece of material having an attached portion disposed in a vertical plane twisted and bent into a loop having the greater width of the material disposed transversely of the loop terminating in a second twisted portion with its plane parallel to the first mentioned part, and a nose bearing member centrally secured to and depending from the ring for engagement for the nose of the wearer.

2. In a device of the character described, the combination with a central resilient adjustable ring, of a sleeve embracing the termini of the ring and holding the parts in close engagement one with the other to close In testimony whereof I afiix my signature the ring, the said termini being continued 1n the presence of two Witnesses.

in outwardly projecting portions bearing GEORGE H. DAY. lens attachments, and a nose engaging mem- Vitnesses:

5 her secured to the ring at a point diametri- H. K. PARSONS,

celly opposite the sleeve. E. M. HALVORSEN.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, D. C. 

